Thawing-out device for hydrants.



J. DE SIZE THAWING0UT nEvlcE FOR HYD'RANTS.

APPLICATION FILED DEC. 2, I9I4.

Patented July 6', '1915.

LIS

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COLUMBIA PLANOGRM'H Ca. WASHINGTON. D. e4

pivirnn srarns natuur opriep.

JOSEPH Dfnsizn, lor Newly-oen, 1v. Y.

THAWING-.OUT DEVICE FOR HYDRANTS.

mauves.

Specification of Letters Patent.

`Patented July 6, 191m.

Application filed December 2, 1914. Seral No. 875,118.

hydrants, arranged to permit of f conveniently connecting the device to a frozen hy- .dranty with a view to thaw out the same with the aid of steam and to subsequently siphon the water of condensation out of the hydrant.

In order yto accomplish the desired result, use is made of a coupling adapted to screw on the outlet nipple of a hydrant, a flexible tube attached to saidcouplingand adapted to be passed through` thek said outlet into the interior of the hydrant, and a steam pipe connected lwith the said coupling to conduct steam into thehydrant by way of the said flexible tube to thaw out the hydrant.` `-Use is also made of a steam ejector adapted to be connected with the said steam `pipe and the said coupling to siphon the water of condensation out ofthe hydrant after the thawing-out operation is completed. A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference vindicate corresponding `parts in bothl views.

Figure 1 is a sectional sideelevation of the thawing-out device as applied to a hydrant for thawing out the latter;-and Fig.

2 is a reduced side elevation of the thawingout device as applied to a hydrant for thawing out the water of condensation, part of the hydrant being shown in section.

The thawing-out device is provided with a coupling A having a body member A on which is mounted to turn the coupling member A2 adapted to screw on the usual outlet nipple B of a hydrant B, as plainly shown in Fig. l. rlhe body member A is provided with a central bore, the inner end of which is threaded for receiving a nipple C held on one end of a fiexible tube C extending through the coupling member A2 and adapted to be passed through the outlet B into the interior of the hydrant B, as plainly shown in Figs. 1 and 2. rlhe body member A is provided with a threaded end A3 which screws into a T D. of a steam pipe D provided with a valveE and terminating in i a T D2 adapted tobe connected with a steam supply pipe F leading from aA boiler or other suitable source of steam supply. When the several parts are in the position shown in F1g.`l and the valve E is opened then the steam can pass by way of the pipesF and D, coupling A and flexible tube C into the interior of thehydrant B to thaw the latter with the steam and` thus thaw out the hydrant.

When the thawing-out operation is completed, it is desirable to` remove the water "of condensation from `the hydrant B, and for this purpose, the following arrangement is made The 'l' D2 is connected by a `pipe G with a steam ejector'H,l of the usual construction, andconnected by a pipe l with the T D. The ejector H is provided at its lower end with an outlet valve J. After the thawing-out operation is completed, the operator closes the valveE and opens the normally closed valve J so that the steam passing by way of the pipeb` into the 'l' D2 passes by way of the pipe G into the ejector H to. produce a suction in the pipe I, T D', terminal A8 and tube C'to siphon out the `water of condensation contained in the hydrant B, the water being `discharged by way of the open valve J. j

In case the vent opening in the lower end ofthe hydrant B is clogged up and-the hydrant is filled with water which has frozen, thenthe thawing-out-device is placed in the `gutter adjacent the hydrant B and the end of thetube C is inserted through the outlet B into the hydrant to conduct steam into the latter with a view to melt the ice. The tubeC is gradually fed into the hydrant as the ice melts, and the steam on finally reaching the lower end of the hydrant tends to clean out the vent opening. After the ice is melted, the water is siphoned out by closing the valve E and opening the valve J to actuate the steam ejector H.

From the foregoing it will be vseen that the thawing-out device can be readily attached to a hydrant as now generally constructed so that no change whatever in the construction of the hydrant is necessary. lt will also be noticed that by the use of the flexible tube C the latter can be readily passed into the hydrant to conduct the steam therein and to Siphon out the water of condensation whenever it is desired to do so. The tube C is sufliciently long to direct the steam down to the valve connecting the hydrant with the water supply main to insure a quick thawing out.

. claim as new and desire to secure by Letters Patent: Y y

1. In a thawing out device for hydrants, a coupling adapted to be attached to the outlet nippleof a hydrant and provided with a flexible tube adapted to extend through the loutlet nipple of the hydrant into the latter,

and with means for the attachment of a steam pipe to the coupling.

2. In a thawing out device for hydrants, a coupling adapted to be attached to the outlet nipple of the hydrant and provided with a flexible tube adapted to extend through the nipple of the hydrant into the latter and with a threaded nipple in alinement with the flexible'tubey and by mea-ns of which a steam pipe may be secured to the coupling.

3. In a thawing out device for hydrants, a coupling adapted to be attached to the outlet nipple of ahydrant, said coupling comprising an internally threaded coupling member adapted to be screwed on the outlet nipple of a hydrant, a body member on which the coupling member is mounted to turn, and a threaded nipple carried by the body member and projecting from the same, said nipple carrying a flexible tube adapted to extend into the hydrant.

LA thawing-out device for hydrants, comprising Va coupling having a bodymember and a coupling member mounted to turn on the body member and adapted to engage the outlet ofa hydrant, a flexible tube connected with thesaid body member and extending through the said coupling member and adapted to pass through the said outlet into the hydrant, a steam pipe connected with the said body member and adapted to be connected with a source of steam supply, a valve on the said steam pipe, an ejector connected with the ends of the said steam pipe, and a valve normally closing the outlet of the said ejector.

5. A thawing-out device for hydrants, a coupling having a body member and a coupling member mounted to turn on the body member and adapted to engage the outlet of a hydrant, said body member carrying a nipple on its outer face, a iexible tube carried by the nipple and extending through the coupling member and adapted to extend into the hydrant, an ejector having a valve at its lower end, a pipe leading from the upper end of the ejector, a connection between the ejector and the said nipple, a valved pipe leading from the said connec tion, and means for connecting the valved pipe and the pipe leading from the ejector with a steam pipe.

6. A thawing-out device for hydrants, comprising a coupling having a threaded nipple and adapted to engage the outlet of a hydrant, a flexible tube secured to the coupling and extending through the same and adapted to extend into the hydrant, a T screwing onto the nipple of the coupling, a valved pipe leading from the T, an ejector having a valve at one end and connected with the T, a second T with which the valved pipe is connected and to which a steam pipe is adapted to be connected, and a pipe connecting the ejector with the second T.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH DE SIZE.

Witnesses:

Trino. Gr. HosTER, GEORGE H. EMsLm.

Copies of this patent mayl be obtained for nve cents each, by addressing the Commissioner of Patents,

Washington, D. 0. I 

